hello i saw the previous forums about how to fix a crack in the bottom of the case by the drain plug. so i took it to a welder who has fixed these before. he put some silicon long where the 2 cases come together and welded mine up and re-tapped the threads.i brought it hoput onme took out the bolt a copper washer i got from my local suzuki dealer. put the fresh oil in took it for a spin then put it back in the garage for the time being.came back about and hour later and noticed it was still leaking. is there somthing else i can do about it or check. iam pretty sure that the botls tight enough . i dont want to risk puttin much tighter for fear of stripping the threads. do u think if i were to put teflon tape on the bolt if the leaking would stop.